Foldable Display Device Independent Scrolling Control

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Solution Overview

Problem

Foldable display devices require users to repeatedly scroll up and down to compare content across split display areas, causing inconvenience when viewing targets spaced apart on a webpage.

Innovation Solution

A foldable display device with a controller and folding sensor unit that allows users to switch between full unfolding and intermediate folding modes, enabling simultaneous viewing of two display areas and reducing the need for alternating scrolling by maintaining one area fixed while scrolling another.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the display areas are split into multiple sections, then the user can view different portions of content simultaneously, but the user must repeatedly scroll to compare content across split areas

Engineering Contradiction:
Improvecontent visibilityVSAvoidscrolling operation
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent applies dynamics by making one display area fixed while allowing the other area to scroll independently. This dynamic configuration enables simultaneous viewing of different content portions without requiring repeated scrolling to compare targets, as one area remains stationary as a reference while the other scrolls to bring different content into view.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The display area is segmented into multiple independent scrolling regions, each capable of displaying different portions of content simultaneously. This segmentation allows users to view and compare content from different parts of a webpage or document at the same time without needing to scroll back and forth.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If the display areas are split physically or visually, then multiple display areas can be utilized, but the user cannot simultaneously view targets spaced apart on the page

Engineering Contradiction:
Improvedisplay areaVSAvoidsimultaneous content viewing
Core Design Contradiction:
Area of stationary objectVSLoss of information

Solution Approach 1:

The patent implements independent scrolling control for each display area, allowing one area to remain fixed while another scrolls. This dynamic approach enables users to simultaneously view targets that are spaced apart on the page by positioning them in different scrollable areas, eliminating the need to scroll repeatedly to compare distant content.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces an additional dimension of independence in scrolling control across split display areas. By allowing each area to scroll independently or remain fixed, users can position content from different parts of a page simultaneously within the split areas, effectively utilizing the spatial separation to view distant targets at the same time.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3223113B1Foldable display device
Publication Date: 2020.03.11 LG ELECTRONICS INC
  • EP3223113B1 patent drawingFigure 1~2
  • EP3223113B1 patent drawingFigure 3A
  • EP3223113B1 patent drawingFigure 3B(a)~3B(b)

AI summary

Disclosed are a foldable display device capable of fixing a screen by means of folding a display and a method for controlling the foldable display device. The foldable display device according to the present specification comprises a display unit having first and second display regions separated spatially or visually by being folded; a folding sensor unit for outputting a status signal regarding the degree to which the display unit is folded; and a control unit. The control unit can execute a first mode in which the entire screen displayed on the display unit in a fully open state is controlled, and a second mode in which, when the state changes from the fully open state to an intermediately folded state, the screen of the display region in which the touch of a user is sensed is controlled from among the first and second display regions. According to the present specification, the user can verify simultaneously two desired areas of the screen of the same content. Accordingly, the inconvenience of having to scroll back and forth on the screen can be reduced.